X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Temperature 293.0
Details 1.4M sodium potassium phosphate ph 7.5, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 293K, pH 7.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 244.11 α = 90
b = 244.11 β = 90
c = 244.11 γ = 90
Symmetry
Space Group I 41 3 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2002-02-01
Diffraction Radiation
Monochromator Protocol
ASYMMETRICALLY CUT SI CRYSTAL, CYLINDRICALLY BENT SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.3 -- ALS 5.0.3

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
2.3 182 95.3 -- 0.099 -- 4.3 -- 52273 -- -- 55.2
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
2.28 2.37 97.8 -- 0.77 0.96 4.6 --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 2.3 39.6 -- 0.0 -- 52273 2639 95.3 -- 0.234 0.234 0.279 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.3 2.32 -- 31 981 0.388 0.442 -- 94.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model ISOTROPIC
Mean Isotropic B 49.26
Anisotropic B[1][1] 0.0
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.0
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.0
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 6.744
c_angle_deg 1.77
c_mcbond_it 5.268
c_bond_d 0.014
c_scbond_it 8.868
c_scangle_it 11.072
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.35
Luzzati Sigma A (Observed) 0.51
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.44
Luzzati Sigma A (R-Free Set) 0.64
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3449
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 245

Software

Software
Software Name Purpose
Blu-Ice data collection
Mosflm/CCP4/Scalepack data reduction
SNB/MLphare/CCP4/SOLVE model building
CNS refinement version: 1.0
MOSFLM data reduction
CCP4 data scaling version: (SCALA)
SHAKE-N-BAKE phasing
MLPHARE phasing
CCP4 phasing
SOLVE phasing